Chris Sacca, a judge on the television show “Shark Tank” and early investor in tech companies like Twitter and Uber, announced Wednesday that he will be retiring from venture capital and the television show, CNBC reported.

Sacca wrote Wednesday that he is "hanging up my spurs" after he rediscovered a notebook with entries he had written back in his 20s. In it, the younger Sacca had said he planned to retire at age 40. "In a matter of days, I'm going to be 42 years old," Sacca said. "Two years late."

"I succeeded at venture capital because, for years, I rarely thought about or spent time on anything else. Anything less than that unmitigated full commitment leaves me feeling frustrated and ineffective," Sacca said. "As you've heard me say on the show, if I'm not all in, I'm out."

Sacca said he's leaving ABC's "Shark Tank" this season, since he can't do the show while also keeping to his promise to stop investing in new companies, CNBC reported.